R Observatory: Metrics for rex version 1.2.2

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

rex

1.2.2Package record

Friendly Regular Expressions

9packages dependsuggested by 12

2.6Mdownloads / year

76.7%test coverage

8/13flavors OK

Overview

About

Maintained by Kevin UsheyCRAN page ↗GitHub ↗Website ↗Issues ↗

A friendly interface for the construction of regular expressions.

Changes in 1.2.2

Rex no longer changes the state of the random number generator when attached.

From NEWS.md in the release

Install

R (CRAN)pak (dev)Ubuntu (r2u)Fedora (COPR)openSUSE (OBS)

install.packages("rex", repos = "https://cloud.r-project.org/")

Installs the current CRAN release. Prebuilt binaries on Windows and macOS.

if (!requireNamespace("pak", quietly = TRUE))
  install.packages("pak", repos = "https://cloud.r-project.org/")
pak::pak("r-lib/rex")

Development version from r-lib/rex. Installs pak first if it is not already available.

Release

# enable cranapt (r2u) if it is not already set up, then install
grep -rqs r2u.stat.illinois.edu /etc/apt/sources.list /etc/apt/sources.list.d/ \
  || curl -fsSL https://raw.githubusercontent.com/eddelbuettel/r2u/master/inst/scripts/add_cranapt_noble.sh | sudo bash
sudo apt install -y r-cran-rex

Fast Ubuntu binaries via r2u (no compilation). The cranapt setup runs once and is skipped when it is already enabled. We list this channel from recorded r2u download activity rather than from a live index of the repository, so treat it as last known rather than guaranteed.

bspm (used by r2u) also needs make: sudo apt install make

# enable the iucar/cran COPR if it is not already present, then install
ls /etc/yum.repos.d/*iucar*cran*.repo >/dev/null 2>&1 \
  || sudo dnf copr enable -y iucar/cran
sudo dnf install -y R-CRAN-rex

RPMs from the iucar/cran COPR, rebuilt from CRAN.

For install.packages() integration in R, also: sudo dnf install R-CoprManager

# add the autoCRAN OBS repo (Tumbleweed) if it is missing, then install
zypper -q lr | grep -qi autoCRAN \
  || sudo zypper addrepo https://download.opensuse.org/repositories/devel:/languages:/R:/autoCRAN/openSUSE_Tumbleweed/devel:languages:R:autoCRAN.repo
sudo zypper install -y R-rex

RPMs auto-built from CRAN on openSUSE OBS (Tumbleweed). We list this channel from recorded autoCRAN download activity rather than from a live index of the repository, so treat it as last known rather than guaranteed.

Health

CRAN checks

5NOTE8OK

Check messages

NOTER code for possible problemsr-devel-linux-x86_64-debian-clang, r-devel-linux-x86_64-debian-gcc, r-devel-linux-x86_64-fedora-clang, r-devel-linux-x86_64-fedora-gcc, r-devel-windows-x86_64

Found calls to structure() using deprecated special names:
  rex/R/aaa.R (.Names: 1)
'.Names' should be changed to 'names'.

CRAN check page ↗

Slowest check: 1.9 min · r-oldrel-macos-x86_64

Status changes

NOTE8 OK, 5 NOTENow
NOTE11 OK, 2 NOTE2026-07-16
OK14 OK2026-03-10

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 1.2.2

READMEYes · 235 wordsVignettesYes · 2 · dynamicNEWSYes · 100% structured · mentions 1.2.2Citation fileNoWebsiteYes · pkgdown

Help pages: 19
Examples that run: 100%5 run in a plain check
Exported functions with examples: 27%
Documented parameters: 100%
Return-value docs: 9%
Help pages citing references: 0%

Vignettes (2)

Server Log Parsing HTML
URL Validation HTML

How these are measured

Downloads

2.6M

CRAN downloads in the past year

Rank #221 · ~7K/day · ~214.3K/mo

Releases R versions

Daily download trend is not available in this view yet.

217.2K30 days

634.3K90 days

2.6M1 year

Compare downloads with other packages →

Also on41.2K r2u153 autocran92.1K conda_forge133 c2d4u

How downloads are counted

Repository

r-lib/rex ↗Organization: r-lib

335Stars

28Forks

23Open issues

2Open PRs

1Releases

237Commits

11Commit identities

237 commits · Last activity 2024-03-12 · 0% stars, 30d · The default branch showed an older version (1.2.1.9000) than CRAN on 2026-10-18

Responsiveness

How these are sampled

PRs merged (all time): 83%
Median days to close, 50 most recently updated closed issues: 2
Median days to close, 50 most recently updated closed PRs: 0

Stars over time

2025-10-06 · 3332026-09-11 · 335

How these are measured

PracticesBeta

10 development-tooling and community-health practices detected across 5 families in the upstream repository

Checks run against github.com/r-lib/rex on 2026-10-18.

Continuous integration (2)

GitHub ActionsR CMD check workflow

The R CMD check workflow runs on Linux, macOS and Windows, and on R-devel

Docs source (3)

pkgdown

GitHub Pages site last deployed 2024-03-13 · The repository has a site deploy workflow

pkgdown site last built 2024-03-12, before release 1.2.2 (2026-03-28)

Coverage (1)

Coverage reporting (Codecov)

CRAN release process (2)

cran-comments.mdrevdep/

Show all practicesHide 1 practice

Lint, format, editor (2)

lintrRStudio project

How this is detected·Detection ruleset v3 (2026-09-26)

Dependencies

Declared dependencies

12 external dependencies (excludes base and recommended)

Installing rex adds 1 package (0 with compiled code, 102 KB of source tarballs). Heaviest: withr 102 KB.

Depends (0)

none

Imports (1)

withr

LinkingTo (0)

none

Suggests (11)

covr dplyr ggplot2 Hmisc knitr magrittr rmarkdown roxygen2 rvest stringr testthat

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

9direct

40indirect

Imports 9

Suggested by 12

Show all 21 packagesHide all 21 packages

Depends, Imports or LinkingTo, most downloaded first

covr lintr rxode2 nlmixr2est babelmixr2 todor roclang roxygen2md RBaseX

Suggests, most downloaded first

mlr dparser rhino box.linters ore OpenML mlrCPO serocalculator bdpar gramEvol table.express serodynamics

How these are counted

Code & Tests

People & History

People (3)

Kevin Ushey

Author, Maintainer since 1.2.1 (2021)

Jim Hester

Author

Robert Krzyzanowski

Author · added in 1.0.1

Previously maintained by Jim Hester (0.1.0 to 1.2.0).

Listed in earlier versions (1)

Kevin Ushey <kevinushey@gmail.com> [aut] Jim Hester <james.f.hester@gmail.com> [cre, aut]

no longer listed · 0.1.1 to 0.2.0

Releases (10)

Pick two releases to compare their code metrics.

R
R 4.6.0 released · 2026-04-24
1.2.2Latest
record
2026-03-28 · current release · diff ↗
R
R 4.5.0 released · 2025-04-11
R
R 4.4.0 released · 2024-04-24
R
R 4.3.0 released · 2023-04-21
R
R 4.2.0 released · 2022-04-22
1.2.1
record
2021-11-26 · diff ↗
R
R 4.1.0 released · 2021-05-18
R
R 4.0.0 released · 2020-04-24
1.2.0
record
2020-04-21 · diff ↗ ·
removed 1 export
%>%
R
R 3.6.0 released · 2019-04-26
R
R 3.5.0 released · 2018-04-23
1.1.2
record
2017-10-19 · diff ↗ ·
added 4 exports
m, matches, s, substitutes
R
R 3.4.0 released · 2017-04-21
1.1.1
record
2016-12-05 · diff ↗
R
R 3.3.0 released · 2016-05-03

Show 7 earlier eventsHide 7 earlier events

1.0.1
record
2015-04-28 · diff ↗
R
R 3.2.0 released · 2015-04-16
0.2.0
record
2014-11-26 · diff ↗
0.1.2
record
2014-10-31 · diff ↗ ·
added 1 export
register_shortcuts
0.1.1
record
2014-10-21 · diff ↗
0.1.0
record
2014-10-14
R
R 3.1.0 released · 2014-04-10

Package metadata

First published: 2014-10-14
Total releases: 10 / 12 yrs
License: MIT + file LICENSE OSI
Download size: 89 KB

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("rex")

Format

Ushey, K., Hester, J., & Krzyzanowski, R. (2026). rex: Friendly Regular Expressions (Version 1.2.2) [Computer software]. https://doi.org/10.32614/CRAN.package.rex

This package has no citation file, so citation() returns this entry built from DESCRIPTION.

Cite the R Observatory

For a number measured here: a download total, a coverage figure, an archival date.

Format

APA

Balamuta, J. J. (2026). R Observatory: Metrics for rex version 1.2.2 [Data set]. HJJB, LLC. Data release v2026-10-22. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-22, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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